Light is a form of:
a) Mechanical energy
b) Electrical energy
c) Radiant energy
d) Thermal energy
Answer: c) Radiant energy
Which type of electromagnetic wave is visible to the human eye?
a) Radio waves
b) Microwaves
c) X-rays
d) Visible light
Answer: d) Visible light
The primary colors of light are:
a) Red, green, and blue
b) Red, yellow, and blue
c) Red, green, and yellow
d) Cyan, magenta, and yellow
Answer: a) Red, green, and blue
The color of an object we see is determined by the light:
a) It absorbs
b) It reflects
c) It transmits
d) It refracts
Answer: b) It reflects
The angle of incidence is equal to the angle of _________.
a) Refraction
b) Reflection
c) Absorption
d) Transmission
Answer: b) Reflection
The phenomenon of bending of light as it passes from one medium to another is called:
a) Reflection
b) Diffraction
c) Dispersion
d) Refraction
Answer: d) Refraction
The lens in the human eye that helps to focus light is called the:
a) Cornea
b) Pupil
c) Retina
d) Lens
Answer: d) Lens
Which type of lens is thicker at the center and thinner at the edges?
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: a) Convex lens
The device used to form enlarged, virtual, and erect images of objects is a:
a) Convex mirror
b) Concave mirror
c) Convex lens
d) Concave lens
Answer: c) Convex lens
The device used to form diminished, virtual, and erect images of objects is a:
a) Convex mirror
b) Concave mirror
c) Convex lens
d) Concave lens
Answer: a) Convex mirror
The type of mirror that can produce both enlarged and diminished images is a:
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror
Answer: b) Concave mirror
The phenomenon of splitting white light into its component colors is called:
a) Reflection
b) Diffraction
c) Dispersion
d) Refraction
Answer: c) Dispersion
The part of the eye that controls the amount of light entering the eye is the:
a) Cornea
b) Pupil
c) Retina
d) Lens
Answer: b) Pupil
The color of an object that appears when it reflects all colors of light is:
a) Red
b) Blue
c) Green
d) White
Answer: d) White
The color of an object that appears when it absorbs all colors of light is:
a) Red
b) Blue
c) Green
d) Black
Answer: d) Black
The lens used in a microscope is a:
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: a) Convex lens
The lens used in a camera is a:
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: a) Convex lens
The type of mirror used in car rearview mirrors is a:
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror
Answer: a) Convex mirror
The type of mirror used in shaving mirrors is a:
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror
Answer: b) Concave mirror
The phenomenon of bending of light around an obstacle or through a narrow opening is called:
a) Reflection
b) Diffraction
c) Dispersion
d) Refraction
Answer: b) Diffraction
The unit used to measure the speed of light is:
a) Meters per second (m/s)
b) Kilometers per hour (km/h)
c) Miles per hour (mph)
d) Light-years (ly)
Answer: a) Meters per second (m/s)
The process of forming an image by using a small pinhole opening is called:
a) Reflection
b) Diffraction
c) Dispersion
d) Pinhole imaging
Answer: b) Diffraction
The type of lens used to correct nearsightedness is a:
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: b) Concave lens
The type of lens used to correct farsightedness is a:
a) Convex lens
b) Concave lens
c) Plano-convex lens
d) Plano-concave lens
Answer: a) Convex lens
The phenomenon of the apparent change in frequency of sound or light waves due to the relative motion between the source and the observer is called:
a) Reflection
b) Refraction
c) Diffraction
d) Doppler effect
Answer: d) Doppler effect
The process of using lenses or mirrors to produce enlarged images of distant objects is called:
a) Reflection
b) Refraction
c) Diffraction
d) Magnification
Answer: d) Magnification
The process of using lenses or mirrors to produce diminished images of nearby objects is called:
a) Reflection
b) Refraction
c) Diffraction
d) Minification
Answer: d) Minification
The device used to produce and control a narrow, intense beam of light is called a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: b) Laser
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
The device used to measure the intensity of light is called a:
a) Prism
b) Laser
c) Telescope
d) Photometer
Answer: d) Photometer
The device used to detect and amplify electrical signals produced by light is called a:
a) Prism
b) Laser
c) Telescope
d) Photodetector
Answer: d) Photodetector
The phenomenon of splitting white light into its component colors is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: a) Prism
The process of using lenses to combine colors and produce an enlarged image is used in a:
a) Prism
b) Laser
c) Telescope
d) Microscope
Answer: d) Microscope
